Chapter 12, Problem 38RQ

Interpretation Introduction

Interpretation:

Whether the osmotic pressure of an aqueous solution of 10% glucose (${\text{C}}_{\text{6}}{\text{H}}_{\text{12}}{\text{O}}_{\text{6}}$) is higher or that of 10% sucrose (${\text{C}}_{\text{12}}{\text{H}}_{\text{22}}{\text{O}}_{\text{11}}$), is to be predicted.

Concept Information:

The exact opposing pressure needed to prevent the osmotic flow of a pure solvent during osmosis is called osmotic pressure (Π). It is given by equation Π = MRT, where M is molar concentration of solute, R is gas law constant, and T is Temperature.

Osmosis can be reversed by exceeding the back pressure. This is called reverse osmosis. It is used for purifying seawater or polluted water.

The concentration of a solution can be expressed as molarity. Molarity is the number of moles of the solute per liter solution.